package com.zhy.springcloud.dao;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

/**
 * @Author zhy
 * @Description
 * @ClassName StorageDao
 * @Date 2021/1/7 17:42
 **/
@Mapper
public interface StorageDao {
    int decrease(@Param("productId") Long productId,@Param("count") Integer count);

}
